mirror of
https://github.com/golang/go
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100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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/*
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* Definitions needed for accessing MACH object headers.
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*/
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typedef struct {
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uint32 magic; /* mach magic number identifier */
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uint32 cputype; /* cpu specifier */
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uint32 cpusubtype; /* machine specifier */
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uint32 filetype; /* type of file */
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uint32 ncmds; /* number of load commands */
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uint32 sizeofcmds; /* the size of all the load commands */
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uint32 flags; /* flags */
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uint32 reserved; /* reserved */
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} Machhdr;
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typedef struct {
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uint32 type; /* type of load command */
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uint32 size; /* total size in bytes */
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} MachCmd;
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typedef struct {
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MachCmd cmd;
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char segname[16]; /* segment name */
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uint32 vmaddr; /* memory address of this segment */
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uint32 vmsize; /* memory size of this segment */
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uint32 fileoff; /* file offset of this segment */
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uint32 filesize; /* amount to map from the file */
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uint32 maxprot; /* maximum VM protection */
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uint32 initprot; /* initial VM protection */
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uint32 nsects; /* number of sections in segment */
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uint32 flags; /* flags */
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} MachSeg32; /* for 32-bit architectures */
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typedef struct {
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MachCmd cmd;
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char segname[16]; /* segment name */
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uvlong vmaddr; /* memory address of this segment */
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uvlong vmsize; /* memory size of this segment */
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uvlong fileoff; /* file offset of this segment */
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uvlong filesize; /* amount to map from the file */
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uint32 maxprot; /* maximum VM protection */
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uint32 initprot; /* initial VM protection */
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uint32 nsects; /* number of sections in segment */
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uint32 flags; /* flags */
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} MachSeg64; /* for 64-bit architectures */
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typedef struct {
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MachCmd cmd;
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uint32 fileoff; /* file offset of this segment */
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uint32 filesize; /* amount to map from the file */
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} MachSymSeg;
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typedef struct {
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char sectname[16]; /* name of this section */
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char segname[16]; /* segment this section goes in */
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uint32 addr; /* memory address of this section */
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uint32 size; /* size in bytes of this section */
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uint32 offset; /* file offset of this section */
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uint32 align; /* section alignment (power of 2) */
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uint32 reloff; /* file offset of relocation entries */
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uint32 nreloc; /* number of relocation entries */
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uint32 flags; /* flags (section type and attributes)*/
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uint32 reserved1; /* reserved (for offset or index) */
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uint32 reserved2; /* reserved (for count or sizeof) */
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} MachSect32; /* for 32-bit architectures */
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typedef struct {
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char sectname[16]; /* name of this section */
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char segname[16]; /* segment this section goes in */
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uvlong addr; /* memory address of this section */
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uvlong size; /* size in bytes of this section */
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uint32 offset; /* file offset of this section */
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uint32 align; /* section alignment (power of 2) */
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uint32 reloff; /* file offset of relocation entries */
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uint32 nreloc; /* number of relocation entries */
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uint32 flags; /* flags (section type and attributes)*/
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uint32 reserved1; /* reserved (for offset or index) */
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uint32 reserved2; /* reserved (for count or sizeof) */
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uint32 reserved3; /* reserved */
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} MachSect64; /* for 64-bit architectures */
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enum {
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MACH_CPU_TYPE_X86_64 = (1<<24)|7,
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MACH_CPU_TYPE_X86 = 7,
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MACH_CPU_SUBTYPE_X86 = 3,
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MACH_EXECUTABLE_TYPE = 2,
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MACH_SEGMENT_32 = 1, /* 32-bit mapped segment */
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MACH_SEGMENT_64 = 0x19, /* 64-bit mapped segment */
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MACH_SYMSEG = 3, /* obsolete gdb symtab, reused by go */
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MACH_UNIXTHREAD = 0x5, /* thread (for stack) */
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};
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#define MACH64_MAG ((0xcf<<24) | (0xfa<<16) | (0xed<<8) | 0xfe)
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#define MACH32_MAG ((0xce<<24) | (0xfa<<16) | (0xed<<8) | 0xfe)
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